transmission/macosx/TransmissionHelp/html/speed.html

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HTML

<!DOCTYPE html>
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<META http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link media="all" rel="stylesheet" href="../styles/TransBody.css"/>
<title>Maximizing your download speed</title>
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<body>
<div id="mainbox">
<div id="banner">
<div id="machelp"><a class="bread" href="../index.html">Transmission Help</a></div>
<div id="index"><a class="leftborder" href="../html/Index2.html">Index</a></div>
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<div class="pagetitle">
<h1>How do I maximize my download speed?</h1>
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<ol>
<li>Make sure Transmission's <a href="portforward.html">port is forwarded</a>. Port forwarding makes it easier for others to connect to you, which therefore increases your speed.
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<p>If your router supports NAT-PMP, UPnP, or you have Apple AirPort, Transmission can do this automatically; just tick the checkbox in Preferences &rarr; Network.
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</li>
<li>Make sure you cap your upload speed, so that it isn't flooded. A good rule of thumb is about 60-70% of your maximum upload bandwidth. This can be adjusted in Preferences &rarr; Bandwidth, or in real time using the Action menu.
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<p>eg. If your upload connection is 256 Kilobits/sec, then you should cap it at 21 KB/sec ((<strong>256</strong> / 8) * 0.66 = <strong>21</strong>).
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<li><a href="gettingstarted.html#queue">Queue</a> your transfers. Transmission's queue preferences are located in Transfers &rarr; Management.
<p>Remember, your download speed is proportional to how fast you upload. If there are many transfers running, then each transfer will only receive a small proportion of your upload bandwidth, reducing their respective download speeds.
To avoid spreading your upload too thinly, a good rule of thumb is to have at least 128 KBit/sec of upload bandwidth for every torrent you wish to run simultaneously.
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<p>eg. If your upload bandwidth is 256 KBit/sec, then you should only have two (<strong>256</strong>/128 = <strong>2</strong>) downloading transfers in the queue.
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